Printer&#39;s quoin.



G. F. WOEHLER.

PRINTERS QUOIN.

APPLlcATloN man JUNE 1a. 191s.

Patented Oct. 17, 1916.

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GEORGE F. WOEI-ILER, 0F CINCINNATI, OHIO.

PRINTER S QUOIN.

Leonesa.

Application led June 13, 1916.

To all whom t may concern Be it known that I, GEORGE F. WonHLER, a citizen of the UnitedStates, and a resident of Cincinnati, county of Hamilton, and State of Ohio, have invented certain new and useful Improvements in Printers Quoins, of which the following is a description.

The inventionrelates to improvements in a printers quoin that comprises a casing and wedging mechanism adapted to be placed between the type and a side of the chase so that by the manipulation of the wedging mechanism the type can be securely locked in place. In my application led April 24, 1915, Serial Number 23,609, is disclosed such a device in which the wedging mechanism consists primarily of a push-chain formed of l links hinged together and so mounted in a casing that when pressure is applied to the opposite ends of the chain the pivoted ends of the links will be projected from the casing to effect the wedging action. In this wedging action the opposite ends of the links respectively press against the casing and the sides of the chase. Owing to the comparatively small contacting areas at the ends of the links there is a tendency of such ends to plow into the metal of the chase and casing as they move along the same during the wedging operation. This plowing action at the ends of the links produces considerable friction between the contacting parts and thereby retards the movement of the push-chain along the casing.

In a second application iiled by me June 30, 1915, Serial Number 37,198, means were disclosed for reducing the friction of the push-chain. The meansv so provided consist of thrust-blocks to bear against the side of the chase, and guide-blocks to travel in thev casing to bear against the same. As these blocks have considerable bearing area, as compared with the ends of the links, there will be no plowing of the metal of the chase and casing and consequently the friction of the push-chain will be considerably reduced during the wedging operation.

The purpose of the present invention is to include the features of the former applications, and also improvements in certain details of the mechanism hereinafter described.

In the drawings, in which similar reference characters designate corresponding parts, Figure 1 is a plan View of a quoin embodying the invention. Fig. 2 is a crosssectional view on the line 2-2 of Fig. 1.

Specification of Letters Patent.

Patented Oct. 17, 1.916.

serial No. 103,411.

Figs. 3,4, 5 and 6 are, respectively, detail perspective views of a thrust-block, a link, a. guide-block, and a filler block. Fig. 7 is a side elevation of the mechanism for buckling the push-chain. Fig. 8 is a longitudinal sectional view of the same.

The chase 10 is of the usual formation,

and between a side of the same and the type set therein is placed the quoin. The elongated casmg 11 of the quoin has extending along its length the guideway 12 with a longitudinal slot 13 in its side. In this guideway 1s carried the wedging mechanism adapted to project through the longitudinal slot to bear against the side of the chase to clamp the casing against the type.

The wedging mechanism, primarily, comprises a push-chain formed of a series of guide-blocks 14, a series of thrust-blocks 15. and a series of links 16 pivotally connecting both sets of blocks together. 'Each guideblock 14 is shaped to lit the guideway 12, and 1s freely movable back and forth there- 1n. Each thrust block 15 is rectangular in shape and has a smooth outer surface to bear against and ride upon the side of the chase. The width of the thrust-block is such that it can enter the casing through the slot 13. Each link 16 is permanently hinged at one end by the pin 17 to one end of the thrust-block 15, and at the other end the link is separably pivoted to an end of the guide-block 14. The guide-block has a T- shaped recess 18 in its end to engage the pivoting pin 19'and the shank of the link,

so thatvthe link and guide-block can be easily separated at this joint for the re'- moval of a section of the push-chain. When the guide-block and engaging end of the link are within the casing, the pin 19 is held within the T-shaped recess 18 by the flanges of the casing 11 on opposite sides of the slot 13. The pivots 17 and 19 of the link 16 are offset, so that they will not be in alinement when thelink andfits hinged guideblock are in an extended position within the casing.

In each'end of the casing 11 is a chainsection comprising the guide-blocks 14; the thrust-block 15; and the links 16 connecting the guide-blocks to the thrust-block.-

Between each of these chain-sections and the main push-chain is the elongated filler block 20 movable back and forth in the guideway 12. By removing either chainsection or filler block, the length of the chain for turning the nut.

as a whole can be adjusted to meet different requirements. The filler block can be made in section to give a more varied adjustment of the push-chain.

ln each end of the casing is seated the longitudinally bored block 21, through which passes the screw 22 having on its inner end the head 23. This head is shaped to lit the guideway 12 so as to move back and forth and at the same time prevents the turning of the screw. On the screw, inside of the bored block 21, is the nut 24 having holes 25 in its periphery to receive a tool ln the casing, inside of the nut 24, is secured the block 26 which, with the block 21, prevents .longitudinal movement of the nut within the casing. Consequently when the nut is turned the screw is moved back and forth in the casing. The sides of the casing, as at 27, are cut away to accommodate the movement of the tool turning the nut.. The blocks 21 and 26, together with the screw 22 and nut 24k, are removable from the end of the casing to give access to the push-chain so that one of the chain-sections or blocks 20 can be withdrawn or inserted to regulate the length of the chain.

The operation of the device is as follows: By turning the nuts 24 the screws 22 and their heads 23 can be moved outwardly in the ends of the casing so that the pushchain and chain-sections can be straightened out in the guideway 12. lVith the chain so placed the tops of the thrust-blocks 15 will project slightly through the slot 13 in the side of the casing. T he quoin is then placed in the space between the type and the side of the chase7 with the side of the casing against the rule extending along the type. By turning the nuts 24 to move the screws 22 inwardly into the casing the heads 28 will bear against the guide-blocks 14 at the ends of the chain-sections. This will move the end guide-blocks inwardly and will force the end links 16 to lift and raise the thrustblocks 15 to bear against the side of the chase. The pressure .extends progressively to the successive links, guide-blocks, fillerblocks, and thrust-blocks until all of the latter bear against the side of the chase. This will firmly wedge the quoin between the side Vor the chase and the type, and the latter thereby will be rmly held in place. It is to be observed that the pivots 17 connecting the links with the thrust-blocks are outside of the pivots 19 connecting the links with the guide-blocks, even when the chain is straightened out. Consequently both sets of pivotal connections cannot come into alinement to prevent the buckling of the chain when pressure is applied to its ends. During the outward movement of the links the guide-blocks and filler-blocks move along the guideway, and the thrust-blocks move along the side of the chase. As the bearing surfaces of the blocks are considerable there will be but little tendency for the blocks to plow into the metal of the casing or chase, and the friction between the bearing surfaces will not be so excessive as to retard materially the movement of the chain members during the wedging operation.

Having thus described my invention, what I claim is:

l. n a'quoin, a casing forming a guideway; a push-chain comprising a series of guide-blocks movable along said guideway, a series of thrust-blocks, and links pivotally connecting the series of guide-blocks with the series of thrust-blocks; and means for applying pressure to the ends of the pushchain to force the guide-blocks together to lift the links to project the thrust-blocksl outwardly from the casing.

2. In a quoin, a casing forming a guideway; a push-chain comprising a series of guide-blocks movable along said guideway,

a series of thrust-blocks, and links pivotally connected at one end with the thrust-blocks and pivotally connected at the other end with the guide-blocks, the pivotal connections of the links with the thrust-blocks being offset from the pivotal connections of the links with the guideblocks so that both sets of pivotal connections cannot fall into alinement when the push-chain is elongated; and means for applying pressure to the ends of the push-chain to force the guide-blocks together to lift the links to project the thrust-blocks outwardly from the casing.

8. In a quoin, a casing forming a guideway; a push-chain section comprising a thrust-block, links pivoted at one end to the thrust-block and having a sliding engagement with the guideway at the other end; and means for applying pressure to the ends of the links having the sliding engagement with the guideway to lift the links to project the thrust-block outwardly from the casing.

4L. In a quoin, a casing forming a guideway; a push-chain section comprising a thrust-block, guide-blocks movable along said guideway, and links pivoted at one end to the thrust-block and at the other end to the guide-blocks; and means for applying pressure in opposite directions to the guideblocks to force'them together to lift the links to project the thrust-block outwardly from the casing.

5. In a quoin, a casing forming a guideway; a push -chain section comprising a thrust-block` guide-blocks movable along the guideway, and links pivoted at one end to the thrust-block and having a separable pivotal connection at the other end with the guide-blocks; and means for forcing the guideblocks together to lift the links to project the thrust-block outwardly from the casing.

6. Ina quoin, a casing forming a guide- Way, a main push-chain movable along the guideway, av push-chain section movable along the guidevvay, a ller block in the casing interposed between the end of the main push-chain and the end of the push! chain section, and means for applying pressure to the outer ends of the push-chains to buckle the push-chains to project parts of the same from the casing.

7. In a quoin, a casing forming a guide- Way, a push-chain movable along the guidesignature in the presence of tvvo Witnesses.

Way, a nut rotatable in an end of the guidevvay, and a screw carried by said nut and movable by the turning of the nut to apply l 5 pressure toan end of the push-chain to buckle the push-chain to project parts of the same from the casing.

In testimony whereof I hereunto aliX my 2f) GEORGE F. WOEHLER. Witnesses: Y

CARL T. FOLEY, EDWARD I-I. BRINK.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patent Washington, D. C. 

